Call of Duty: Warzone and Warzone Mobile are getting a lot of new content in Season 4. Here are the latest changes coming to the battle royale. Call of Duty: Warzone Season 4 map updatesThe same maps are available in Season 4, including Rebirth Island and Fortune’s Keep. But there are some key map changes that will switch up gameplay. This includes Urzikstan’s bunkers, which require a keycard to access for high level loot. Urzikstan will also have Gulag changes, including four variants: Gulag “S”: Stacked equipment and L-shaped plywood walls with an S-shaped central wall over the circular floo…